SVreX said:
Plus, you are driving very few miles (presumably with quite a bit of traffic).
Bad conditions for a diesel.
Rent (or contract) a tow vehicle when you need to move the boat.
I just gotta chime in here. Not picking on you SVRex, just a general rant.
I'm really sick of the misinformation being pushed around the web about diesels. This idea of very few miles and traffic being a bad thing for a diesel was a myth back in 1965, and it is certainly completely untrue today. Modern high-pressure common rail direct injection is just as fine in stop and go or sitting still as any gas engine. In fact, with the addition of ethanol, and the lower sulfur of modern diesel fuel, diesel fuel is far more stable in storage than gasoline. As far as leaving you stranded, I'd take any duramax, any 7.3L, any bulletproofed 6.0L, or any Cummins over any of the gas offerings any day for reliability. There is a reason diesels command such a high resale value. They last a long time. Mash your foot, drive 500k, sell it for half of what you paid for it. Try that with a gas engine.
Maintenance cost is slightly higher, but oil change intervals are much longer (on par with gas vehicles) and the only difference is that it takes more oil to change. A fuel filter is $15 and you have to change it every once in a while. But otherwise, there is no additional maintenance cost.
I've owned two duramaxes, two 7.3L, one 6.5 GM, one 6.2 GM, and one Cummins 5.9L. All of them ran exactly as designed for hundreds of thousands of miles, and the only one that needed any major repairs was the earlier Dmax because of the injector failure. So $1300 and a weekend later, problem fixed. I will more than recoup that cost when I sell it for twice as much as I would a gas truck.
The one Duramax of my dad's is an 08 with 36,000 miles on it. 36,000 miles in 10 years. Doesn't matter how much it sits, it fires up and runs flawlessly every time.
10k lbs is about the point where I switch over to a strong preference for diesel. The torque, thermal efficiency, and effortless oomph just can't really be duplicated by gas engines. I have no worries in the Dmax putting my foot to the floor for the climb from Phoenix to Flagstaff. Doing it with a 5.4L Ford means hours of 4500 rpms, temperatures rising, pistons overheating, transmission cooking with all the additional shifts, and a computer trying to avoid detonation.
There really is no comparison. I remember the first time I towed with a diesel. It was a 215hp 6.5L TD. I was towing 10k lbs. There wasn't a single mountain I couldn't top at or above the speed limit on any interstate. That truck had replaced an 88 K2500 with the 5.7 TBI. The difference was almost unfathomable.
My DD/Tow Pig for many many years was a 95 F250 stroke. DD in downtown LA for 7 years, towed a 10k RV for three years when we full-timed, and I used it for work. Paid $10k for it used with 60k miles. Drove it until it had almost 200k and I had collected $3300 in insurance checks from little finder benders that I never fixed. Sold it for $7000, so I made money on it. Had to replace two glow plug relays. That's it.
The 21 mpg empty didn't hurt either.